Finding the Fourth Proportional to 76,988.44, 106,241.10 and 48,323.44
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Solution
The fourth proportional to 76,988.44, 106,241.10 and 48,323.44 is: 66,684.50
Step by Step Solution
- Step 1: Write the proportion equation
76,988.44 : 106,241.10 = 48,323.44 : x - Step 2: Convert to fraction form
76,988.44/106,241.10 = 48,323.44/x - Step 3: Cross multiply
76,988.44x = 106,241.10 × 48,323.44 - Step 4: Simplify right side
76,988.44x = 5,133,935,421.38 - Step 5: Solve for x
x = 5,133,935,421.38/76,988.44 - Step 6: Final answer
x = 66,684.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.